CVE-2021-28495
CVSS V2 Medium 6.8
CVSS V3 Critical 9.8
Description
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train
Overview
- CVE ID
- CVE-2021-28495
- Assigner
- psirt@arista.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-09T13:15:09
- Last Modified Date
- 2021-09-22T16:34:39
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:* | 1 | OR | 0.10.0 | 0.13.0 |
| cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:* | 1 | OR | 0.20.0 | 0.26.7 |
| cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:* | 1 | OR | 0.30.0 | 0.32.0 |
| cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66 | Mitigation Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-28495 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28495 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:53:59 | Added to TrackCVE | |||
| 2022-12-05 10:14:21 | 2021-09-09T13:15Z | 2021-09-09T13:15:09 | CVE Published Date | updated |
| 2022-12-05 10:14:21 | 2021-09-22T16:34:39 | CVE Modified Date | updated | |
| 2022-12-05 10:14:21 | Analyzed | Vulnerability Status | updated |